/* ---------- Reset & Tokens ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --navy: #0B1F3A;
  --transit-blue: #1E6BFF;
  --accent: #FF7A1A;
  --bg: #F5F6F8;
  --white: #ffffff;
  --border: rgba(11, 31, 58, 0.10);
  --muted: rgba(11, 31, 58, 0.60);
  --mono: 'JetBrains Mono', monospace;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--navy);
  background: var(--white);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

h1, h2, h3, h4 {
  letter-spacing: -0.02em;
  line-height: 1.1;
  font-weight: 800;
}

h1 {
  font-size: clamp(2.2rem, 5vw, 3.75rem);
}

h2 {
  font-size: clamp(1.6rem, 3vw, 2.5rem);
}

h3 {
  font-size: 1.25rem;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--transit-blue);
  display: block;
  margin-bottom: 1rem;
}

.eyebrow.dark {
  color: var(--transit-blue);
}

.eyebrow.light {
  color: var(--transit-blue);
}

.section {
  padding: 5rem 0;
}

.section-alt {
  background: var(--bg);
}

.section-title {
  margin-bottom: 3rem;
  max-width: 36rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 0.85rem 1.4rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
  text-align: center;
}

.btn-primary {
  background: var(--navy);
  color: #fff;
}

.btn-primary:hover {
  background: var(--transit-blue);
}

.btn-outline {
  background: transparent;
  color: var(--navy);
  border: 1px solid var(--navy);
}

.btn-outline:hover {
  background: var(--navy);
  color: #fff;
}

.btn-outline-light {
  background: transparent;
  color: #fff;
  border: 1px solid #fff;
}

.btn-outline-light:hover {
  background: #fff;
  color: var(--navy);
}

.btn-accent {
  background: var(--transit-blue);
  color: #fff;
}

.btn-accent:hover {
  filter: brightness(1.1);
}

.btn.full {
  width: 100%;
  padding: 1rem;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 5rem;
  gap: 1rem;
}

.logo {
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.03em;
  text-transform: uppercase;
}

.logo span {
  color: var(--transit-blue);
}

.main-nav {
  display: flex;
  gap: 1.75rem;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.main-nav a {
  transition: color 0.2s;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--transit-blue);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.lang-toggle {
  display: flex;
  background: rgba(11, 31, 58, 0.06);
  border-radius: 999px;
  padding: 0.25rem;
}

.lang-toggle a {
  padding: 0.25rem 0.7rem;
  font-size: 0.65rem;
  font-weight: 700;
  color: rgba(11, 31, 58, 0.4);
  text-decoration: none;
  display: inline-block;
}

.lang-toggle a.active {
  background: #fff;
  color: var(--navy);
  border-radius: 999px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
}

.menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--navy);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  color: #fff;
  min-height: 80vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(0.55);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 31, 58, 0.3) 0%, rgba(11, 31, 58, 0.85) 100%);
}

.hero-content {
  position: relative;
  padding: 6rem 1.5rem;
  max-width: 960px;
}

.hero-content .eyebrow {
  color: #7FB0FF;
}

.hero-content h1 {
  margin-bottom: 1.5rem;
}

.hero-content p {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.75);
  max-width: 38rem;
  margin-bottom: 2rem;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ---------- Page Hero ---------- */
.page-hero {
  background: var(--navy);
  color: #fff;
  padding: 6rem 0;
}

.page-hero h1 {
  margin-bottom: 1.25rem;
  max-width: 40rem;
}

.page-hero p {
  max-width: 36rem;
  color: rgba(255, 255, 255, 0.65);
  font-size: 1.1rem;
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 4rem;
  align-items: start;
}

.about-text p {
  margin-bottom: 1rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.about-text .es {
  font-style: italic;
}

/* ---------- Services ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.service-card {
  background: #fff;
  padding: 2rem;
  border: 1px solid var(--border);
  transition: transform 0.2s, border-color 0.2s;
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: var(--transit-blue);
}

.service-card .num {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--transit-blue);
  display: block;
  margin-bottom: 1rem;
}

.service-card h3 {
  margin-bottom: 0.5rem;
}

.service-card p {
  color: var(--muted);
  font-size: 0.95rem;
}

/* ---------- Tour preview ---------- */
.row-between {
  display: flex;
  justify-content: space-between;
  align-items: end;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.link-arrow {
  color: var(--transit-blue);
  font-weight: 600;
}

.tour-preview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.tour-thumb {
  position: relative;
  overflow: hidden;
  display: block;
}

.tour-thumb img {
  aspect-ratio: 3/2;
  object-fit: cover;
  transition: transform 0.4s;
}

.tour-thumb:hover img {
  transform: scale(1.05);
}

.tour-thumb h4 {
  position: absolute;
  bottom: 1rem;
  left: 1rem;
  color: #fff;
  font-weight: 700;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.6);
}

.tour-thumb span {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--transit-blue);
  color: #fff;
  font-family: var(--mono);
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  font-size: 0.85rem;
}

/* ---------- Tours page ---------- */
.tours-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.tour-card {
  background: #fff;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
}

.tour-card img {
  aspect-ratio: 3/2;
  object-fit: cover;
}

.tour-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.tour-head {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 1rem;
  margin-bottom: 0.25rem;
}

.tour-head h2 {
  font-size: 1.25rem;
}

.price {
  font-family: var(--mono);
  color: var(--transit-blue);
  font-weight: 700;
}

.mono-meta {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: rgba(11, 31, 58, 0.4);
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.tour-body > p {
  color: var(--muted);
  font-size: 0.95rem;
  margin-bottom: 1rem;
  flex: 1;
}

.tour-body ul {
  margin-bottom: 1.5rem;
}

.tour-body ul li {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.25rem;
}

.tour-body .btn {
  margin-top: auto;
}

/* ---------- Bookings ---------- */
.booking-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 4rem;
  align-items: start;
}

.booking-grid aside h2 {
  margin-bottom: 1rem;
}

.muted {
  color: var(--muted);
  margin-bottom: 2rem;
}

.expect-list > div {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1rem;
}

.expect-list span {
  width: 2.5rem;
  height: 2.5rem;
  background: var(--navy);
  color: #fff;
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-size: 0.75rem;
  flex-shrink: 0;
}

.expect-list p {
  font-size: 0.85rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.booking-form {
  background: var(--navy);
  color: #fff;
  padding: 2.5rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.field {
  display: flex;
  flex-direction: column;
}

.field.col-2 {
  grid-column: 1 / -1;
}

.field label {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  opacity: 0.6;
  margin-bottom: 0.5rem;
}

.field input,
.field select,
.field textarea {
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  padding: 0.6rem 0;
  font-family: inherit;
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--transit-blue);
}

.field select option {
  color: var(--navy);
}

.field textarea {
  resize: none;
}

.field .error {
  color: var(--accent);
  font-size: 0.7rem;
  margin-top: 0.35rem;
  min-height: 1em;
}

.booking-form .btn {
  margin-top: 2rem;
}

.form-success {
  margin-top: 1rem;
  color: #7FFFB0;
  font-weight: 600;
  text-align: center;
}

/* ---------- Footer ---------- */
.site-footer {
  background: #fff;
  border-top: 1px solid var(--border);
  padding: 4rem 0 2rem;
  margin-top: 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  color: var(--muted);
  font-size: 0.9rem;
  max-width: 24rem;
  margin-top: 1rem;
}

.footer-grid h6 {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.footer-grid ul li {
  margin-bottom: 0.65rem;
  font-size: 0.9rem;
  font-weight: 500;
}

.footer-grid ul a:hover {
  color: var(--transit-blue);
}

.footer-grid p {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.7;
}

.footer-grid a:hover {
  color: var(--transit-blue);
}

.footer-base {
  display: flex;
  justify-content: space-between;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(11, 31, 58, 0.05);
  font-family: var(--mono);
  font-size: 0.65rem;
  color: rgba(11, 31, 58, 0.3);
}

/* ---------- Mobile ---------- */
@media (max-width: 820px) {
  .about-grid,
  .booking-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
  }
  
  .hide-mobile {
    display: none;
  }
  
  .main-nav {
    display: none;
    position: absolute;
    top: 5rem;
    left: 0;
    right: 0;
    flex-direction: column;
    background: #fff;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
    gap: 1.25rem;
  }
  
  .main-nav.open {
    display: flex;
  }
  
  .menu-btn {
    display: block;
  }
  
  .lang-toggle {
    display: none;
  }
  
  .form-grid {
    grid-template-columns: 1fr;
  }
  
  .field.col-2 {
    grid-column: auto;
  }
  
  .booking-form {
    padding: 1.75rem;
  }
  
  .hero {
    min-height: 70vh;
  }
  
  .hero-content {
    padding: 4rem 1.5rem;
  }
  
  .section {
    padding: 3.5rem 0;
  }
  
  .page-hero {
    padding: 4rem 0;
  }
}